Intro Predictive Maintenance 2 Part 6 ppt

... 60 0 20 00 3 16 1093 .74–.87 Type 310, Rolled 1500 21 00 8 16 1149 . 56 .81 Type 3 16, Polished 75 24 0 .28 Type 3 16, Polished 450 23 2 0.57 Type 3 16, Polished 1740 949 0 .66 Type 321 20 0–800 93– 427 .27 –. 32 Type ... .07–.19 Stellite Polished 68 20 0.18 Tantalum Unoxidized 1340 727 0.14 20 00 1093 0.19 360 0 19 82 0 . 26 53 06 29 30 0.3 Tin, Unoxidized 77 25 0.04 21 2 10...

Ngày tải lên: 12/08/2014, 02:22

... 2. 150 2. 200 3 2. 030 3. 060 3. 122 3.310 3.4 72 3 .64 0 4 4. 060 4. 122 4 .24 6 4 .64 1 4.993 5. 368 5 5.101 5 .20 4 5.4 16 6.105 6. 7 42 7.4 42 6 6.1 52 6. 308 6. 633 7.7 16 8.754 9.930 7 7 .21 4 7.434 7.898 9.487 11. 067 ... 13.4 12 15. 0 26 21 .384 29 .0 02 39.580 18 19 .61 5 21 .4 12 25 .64 5 45.599 75.8 36 128 .117 24 26 .973 30. 422 39.083 88.497 184. 168 3 9...

Ngày tải lên: 12/08/2014, 02:22

... monitored when possible. 96 An Introduction to Predictive Maintenance Figure 5– 12 Rolls should be uniformly loaded. problem is not limited to effective measurement of predictive maintenance programs, but ... sole reason that predictive maintenance has failed to consistently achieve its full potential. The technology is real, and the evolution of 68 An Introduction to Predict...

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... + () ++ () ++ () + 01 1 2 2 3 3 23 sin sin sin .wf wf wf XX X a tb t=+= () + () 12 1 2 sin sinww Xa t Xb t 11 22 = () = () sin sin w w Vibration Monitoring and Analysis 129 this is not practical ... vibrations per minute (vpm) or f T = 1 XX t= () 0 sin w 1 26 An Introduction to Predictive Maintenance T time t X o Displacement X Figure 7 6 Typical periodic motion. Figure 7–7 Si...

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... - K M g KK M g KK K c c 3 1 2 13 2 2 23 3 w w A A M g KK K c 1 2 2 2 23 3 = - w A A K M g KK c 1 2 3 1 2 13 = - w A A 1 2 , XA t XA t 11 22 = () = () sin sin w w M g XKKXKX c 2 223 231 0 ˙˙ ++ () -= M g XKXKXX c 2 222 3 12 ˙˙ =- ... ratio c M g c c n ==Critical damping 2 w X F cK M g F K c c c K M g c c o c ncn c cn n = () +- Ê Ë Á ˆ ¯ ˜ = - Ê Ë ˆ ¯ +¥ Ê Ë ˆ ¯ = -...

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... techniques must be used as part of a comprehensive predictive maintenance program. 9.1 .2 Wear Particle Analysis Wear particle analysis is related to oil analysis only in that the particles to be studied ... to particulate contamination with a size of 10 microns or less. Larger contaminants are ignored. This fact can limit the benefits derived from the technique. 20 6 An Introductio...

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... and further, what the effect of such changes may be. 26 2 An Introduction to Predictive Maintenance Figure 12 1 “Go/no-go” standards. Figure 12 2 Accelerometer to measure vibration of rotating shaft. 10.9 ... advertising campaign said: “You can pay a little now, or a lot later.” 26 6 An Introduction to Predictive Maintenance 10. 12 SEALS AND PACKING Failure modes that affect s...

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... theoretical performance. 27 6 An Introduction to Predictive Maintenance 20 0 100 100 20 0 300 400 500 60 0 700 800 1000 150 50 65 % 70% 75% 80% 80% 75% 70% 65 % BEP 15 HP 15 HP 20 HP 20 HP Total Dynamc Head ... frequency of that segment also changes. R MAX 2 298 An Introduction to Predictive Maintenance Figure 14–9 Resonance response. Failure-Mode Analysis 29 5 Figure 14...

Ngày tải lên: 12/08/2014, 02:22

... well-planned Establishing a Predictive Maintenance Program 327 310 An Introduction to Predictive Maintenance Figure 14 21 Unloaded gear has much higher vibration levels. Figure 14 22 Typical gear-type ... impact on both production capacity and 328 An Introduction to Predictive Maintenance Figure 14–34 Eccentric sheaves. 320 An Introduction to Predictive Maintenance Figure 1...

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... Clearinghouse 20 9 E. Musser Street, Room 20 0 Carson City, Nevada 89710 Telephone: (7 02) 68 4- 022 2 FAX: (7 02) 68 4- 0 26 0 Contact: Ms. Heather Elliot (7 02) 68 4- 020 9 helliot@govmail.state.nv .us NORTH ... Development 717 14th Street, N.W. - Suite 120 0 Washington, D.C. 20 005 Telephone: (20 2) 727 -1700 (direct) (20 2) 727 -65 37 (secretary) FAX: (20 2) 727 - 161 7 No e-mail a...

Ngày tải lên: 12/08/2014, 02:22